基于单片机的脉搏心率测量仪的开发与设计

哈尔滨工业大学毕业设计(论文)题目：基于单片机的脉搏测量仪的研究与设计学院：通信学院专业班级：通信工程092班学生姓名：王家涛指导教师：郑文辉成绩：2013年07月01日哈尔滨工业大学毕业设计（论文）I摘要在传统的医疗检测中，脉象检测一直都起着非常重要的作用，人体的脉象包含着大量的人体的生理和病理方面的信息。脉诊一直是医生诊断疾病的重要手段之一，但受人为因素的影响很大。经医学观察研究表明，人体手指末端含有丰富的毛细血管和小动脉，这些动脉和人体其他地方的动脉一样，含有丰富的生理信息。由于光电脉搏检测技术具有很高的绝缘性，且抗电磁等干扰能力强，可以对人体进行无损伤检测。本文设计通过光电法对人体指尖的脉搏进行测量，并将测量信息送入单片机进行处理，最后通过数码管将测量结果显示出来。将对脉搏信号的检测模块，脉搏信息的处理模块，单片机，数码管显示模块等电路集成在一块电路板上，形成一个简易的脉搏测量仪。这种测量仪具有精确度高，体积小，价格便宜，易于操作等特点，特别适合于个人使用和家庭使用，给我们的生活带来极大方便，让我们第一时间对自己的身体状况有进一步的了解。关键词：脉搏；光电传感器；单片机；数码管哈尔滨工业大学毕业设计（论文）IIAbstractInthetraditionalmedicaltesting，thepulseconditiondetectionhasbeenplayingaveryimportantrole．Thepulseconditionofthehumanbodycontainsalargenumberofphysiologyinformationandpathologyinformation，thepulseexaminationhasbeenbeingoneoftheimportantmeansforthedoctortodiagnosistheillness．Buttheman-madefactorsinfluenceitverymuch，themedicalobservationresearchshows．Theendofthefingercontainsrichcapillariesandsmallarteries．Thesearteriesandtheotherarteriesofthebodyholdrichphysiologicinformation．ThePhotoelectricpulsedetectingtechnologycantestthebodywithoutdamageowingtoitshighinsulationandstrongabilitytoresisttheelectromagneticinterference．Thisdesigninthetextcansurveythepulseofthefingertipthroughphotoelectricmethodandtransporttheinformationtothemicrocontrollertodowithit．Atlast，theresultisshowedbythedigitaltube．Whentheelectriccircuitsuchasthedetectionmoduleofthepulsesignal，theprocessingmoduleofthepulseinformation，SCM，digitaltubeareintegratedintheboardofelectriccircuit，itformedansimplepulsemeasuringinstrument，thisinstrumenthashighaccuracy，small,cheap，andeasytooperate．Itisespeciallysuitableforpersonaluseandfamilyuse．Itbringsgreatconveniencetoourlife，sowecanhaveafurtherunderstandingofourbodycondition．Keywords:Pulse；Photoelectrictransducer；SCM；Digitaltube哈尔滨工业大学毕业设计（论文）III目录摘要.............................................................................................................错误!未定义书签。Abstract.....................................................................................................................................II第1章绪论............................................................................................................................11.1研究的目的和意义...................................................................................................11.2国内外的研究现状...................................................................................................21.3设计内容...................................................................................................................3第2章课题方案论证............................................................................................................42.1采用压电式脉搏传感器...........................................................................................42.2采用光电式脉搏传感器...........................................................................................52.3方案确定...................................................................................................................6第3章硬件电路设计............................................................................................................73.1元器件介绍...............................................................................................................73.1.1AT89C2051单片机.......................................................................................73.1.2LM324简介.................................................................................................103.1.37809和7805简介.......................................................................................113.2整体电路分析...........................................................................................................133.2.1脉搏信号采集电路......................................................................................143.2.2脉搏信号处理电路......................................................................................153.2.3单片机控制显示电路..................................................................................17第4章软件设计....................................................................................................................204.1系统总体软件流程.................................................................................................204.2整体程序设计.........................................................................................................20第5章软件仿真与系统实物................................................................................................235.1Keil编译软件.........................................................................................................235.2Protues软件仿真....................................................................................................275.2.1Protues软件简介.........................................................................................275.2.2电路仿真......................................................................................................285.3PCB板生成............................................................................................................30哈尔滨工业大学